J/ApJS/199/24 The first three quarters of Kepler mission (Tenenbaum+, 2012)
Detection of potential transit signals in the first three quarters of Kepler
mission data.
Tenenbaum P., Christiansen J.L., Jenkins J.M., Rowe J.F., Seader S.,
Caldwell D.A., Clarke B.D., Li J., Quintana E.V., Smith J.C., Stumpe M.C.,
Thompson S.E., Twicken J.D., Van Cleve J., Borucki W.J., Cote M.T.,
Haas M.R., Sanderfer D.T., Girouard F.R., Klaus T.C., Middour C.K.,
Wohler B., Batalha N.M., Barclay T., Nickerson J.E.
<Astrophys. J. Suppl. Ser., 199, 24 (2012)>
=2012ApJS..199...24T 2012ApJS..199...24T
ADC_Keywords: Planets ; Stars, double and multiple ; Magnitudes
Keywords: planetary systems - planets and satellites: detection
Abstract:
We present the results of a search for potential transit signals in
the first three quarters of photometry data acquired by the Kepler
mission. The targets of the search include 151722 stars which were
observed over the full interval and an additional 19132 stars which
were observed for only one or two quarters. From this set of targets
we find a total of 5392 detections which meet the Kepler detection
criteria: those criteria are periodicity of signal, an acceptable
signal-to-noise ratio, and a composition test which rejects spurious
detections which contain non-physical combinations of events. The
detected signals are dominated by events with relatively low
signal-to-noise ratio and by events with relatively short periods. The
distribution of estimated transit depths appears to peak in the range
between 40 and 100 parts per million, with a few detections down to
fewer than 10 parts per million. The detections exhibit
signal-to-noise ratios from 7.1σ, which is the lower cutoff for
detections, to over 10000σ, and periods ranging from 0.5 days,
which is the lower cutoff used in the procedure, to 109 days, which is
the upper limit of achievable periods given the length of the data set
and the criteria used for detections. The detected signals are
compared to a set of known transit events in the Kepler field of view
which were derived by a different method using a longer data interval;
the comparison shows that the current search correctly identified
88.1% of the known events.
Description:
The data acquisition period selected for this analysis spans the first
three quarters (Q1-Q3) of science observation, spanning the interval
from 2009 May 12 00:00:00 UTC to 2009 December 17 23:59:59 UTC, a
total period of 218 days.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 62 5392 List of detections in first 3 quarters of Kepler data
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/ApJ/728/117 : Kepler planetary candidates. I. (Borucki+, 2011)
J/A+A/528/A63 : Velocitometry transit of KOI-428b (Santerne+, 2011)
J/ApJS/197/2 : Transit timing observations from Kepler. I. (Ford+, 2011)
J/ApJS/197/8 : Kepler's candidate multiple transiting planets (Lissauer+,
2011)
http://archive.stsci.edu/kepler/ : MAST Kepler home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler identifier
10- 13 F4.1 mag Kpmag Kepler magnitude
15- 17 I3 --- Qobs Quarters observed (1, 2 and/or 3)
19- 22 I4 --- KOI ? KOI (Kepler Object of Interest)
23 A1 --- n_KOI [*] indicates a False Positive (FP)
25- 30 F6.2 d T0 Epoch (JD-2454833.0)
32- 37 F6.2 d Period Orbital period
39- 45 F7.1 --- MES Multiple Event Statistics; in σ
47- 54 F8.1 10-6 Depth Transit depth; in parts per million
56- 62 F7.1 10-6 e_Depth Uncertainty in Depth; in parts per million
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History:
From electronic version of the journal
References:
Tenenbaum et al. First 12 quarters 2013ApJS..206....5T 2013ApJS..206....5T
Tenenbaum et al. First 16 quarters 2014ApJS..211....6T 2014ApJS..211....6T
Seader et al. First 17 quarters 2015ApJS..217...18S 2015ApJS..217...18S Cat. J/ApJS/217/18
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 26-Mar-2012